i cant view MS word,excel and powerpoint document on my nokia c5-03 phone.am being told by my phone to purchase some software which is not available in my region-ghana.please can someone help me to view this document on my phone. Any software to download?

can someone help with hw to delete items on my phone memory like tones,e-mail alert tones etc.cause anytime its full it affect other operation of the phone.also wen u check on the phone memory details u see used memory details but i cant access the data on it.how can i delete those items on the phone memory which can not be send.